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Ethyl Glucuronide (EtG) is a unique biological metabolite that is formed in the body after the consumption of ethanol, typically from drinking alcoholic beverages. Reported to be detectable in urine typically from 8-80 hours after ingestion, and 2-36 hours in blood EtG is detectable over a period roughly 5-6 times longer than traditional urine ethanol testing Detectable in oral fluid only a few hours longer than ethanol* EtG has also been isolated in hair follicles *G.Heiseth, B. Yttredal, et.al. ; JATox: July 2010
It is true that EtG can be detected in chronic drinkers for 80 hours or even up to 5 days. During this period of chronic use, the EtG level can exceed 100,000 ng/mL. Two primary factors to determine the window of detection is based on volume of alcohol consumed and the time between each drink.tG ALCOHOL TEST-URINE. Alcohol is rapidly eliminated from the body at a rate of approximately one drink per hour. Whether looking for alcohol in breath, blood, saliva or urine, using the standard technology, the rapid elimination limits the detection of alcohol to a matter of hours.